.wrap{
    position: fixed;
    left: 0;
    top: 0;
    width: 100vw;
    height: 100vh;
    background: #ddd;
}

.bar{
    position:absolute;
    background: red;
    z-index: -1;
    width: 100%;
    height: 30px;
    top: 0;
    left: 0;
}

.content-wrap{
    width: 60%;
    margin: 0 auto;
}

.title{
    height: 30px;
    margin: 0;
    line-height: 30px;
    color: yellow;   
}
.add-title{
    margin: 15px 0;
}
.input{
    width: 100%;
    height: 35px;
}
.mid {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.tip{
    color: tomato;
}
.btns{
    margin: 10px;
    display: flex;
    align-items: center;
    /* justify-content: ; */
}
.btn{
    margin: 0 8px;
    padding: 5px 10px;
    border: 2px solid black;
    cursor: pointer;
    box-shadow: 10px #666;
}
.btnShow{
    border: 2px solid red;

}

.list{
    width: 100%;
}
.item{
    height: 50px;
    display: flex;
    align-items: center;
    background: white;
    border-bottom: 5px solid gray;
}
.item-left{
    width: 40px;
    height: 40px;
    border: 1px solid #ddd;
    border-radius: 21px;
    -webkit-border-radius: 21px;
    -moz-border-radius: 21px;
    -ms-border-radius: 21px;
    -o-border-radius: 21px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-right: 18px;
    margin-left: 10px;
}